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CVE-2026-21626— Extension - stackideas.com - Information disclosure in post custom fields in EasyDiscuss 1.0.0-5.0.15 for Joomla

Quick assessment

Affected
Stackideas.com EasyDiscuss extension for Joomla
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

StackIdeas EasyDiscuss是StackIdeas公司的一个扩展。 StackIdeas EasyDiscuss存在信息泄露漏洞，该漏洞源于论坛帖子自定义字段的访问控制设置未应用于JSON输出类型，可能导致访问控制列表违规和信息泄露。

AI Predicted 6.5 Difficulty: Easy EPSS 0.41% · P34

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-21626

Vulnerability Information
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Vulnerability Title
Extension - stackideas.com - Information disclosure in post custom fields in EasyDiscuss 1.0.0-5.0.15 for Joomla
Source: CVE Program / CVE List V5
Vulnerability Description
Access control settings for forum post custom fields are not applied to the JSON output type, leading to an ACL violation vector an information disclosure
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
StackIdeas EasyDiscuss 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
StackIdeas EasyDiscuss是StackIdeas公司的一个扩展。 StackIdeas EasyDiscuss存在信息泄露漏洞，该漏洞源于论坛帖子自定义字段的访问控制设置未应用于JSON输出类型，可能导致访问控制列表违规和信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Stackideas.com EasyDiscuss extension for Joomla 1.0.0-5.0.15 -

II. Public POCs for CVE-2026-21626

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-21626

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IV. Related Vulnerabilities

Same product: EasyDiscuss extension for Joomla
Same vendor: Stackideas.com
Same weakness: CWE-200

V. Comments for CVE-2026-21626

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